Imola_Tip_Soul-Ja

To The List,

Since it's rainy here in the Northeast this Memorial Day weekend, I decided to service the Stratmosphere Hyperboost valves on my Y2K Imola S4.

I purchased the Hyperboost valves last November (2002) and this is the first servicing. Well, I received a surprise when I opened up the valves to re-grease them.

The "O" ring located at the top of the valve was missing. No, it didn't fall out...it was never there. The two "O" rings in the cylinder wall were intact.
So, two out of three "O" rings were installed from Stratmosphere.

I also purchased a third Hyperboost valve from Stratmosphere last November (after the purchase for my S4) for my Porsche 951. After my discovery with the S4 valves, I opened the valve that I installed in the 951 and found THREE "O" rings.

With this in mind, could the missing "O" ring in both diverter valves in my S4 cause them to be defective? I am wondering if the lack of the "O" ring would interfere with the valves ability to hold/sustain boost.

I sent an email to Stratmosphere documenting my experience and requesting that TWO "O" rings (for my S4) be sent to me. I have removed the Stratmosphere DVs from my S4 and replaced them with the stock Bosch DVs until I receive the "missing O rings" from Stratmosphere.

I am passing this info along to ALL S4 owners who have purchased Stratmosphere Hyperboost valves - INSPECT THEM - if you haven't already.

jy

Y2K Imola S4
86 Porsche 951.

NoFHoes

Thanks for the update! I will check mine ASAP.

0700

<center><img src="http://pictureposter.audiworld.com/6207/2003duhfmicbends03.jpg"></center><p>
to a tight seal, there are over 5000 Froge BPV's running around without them. You've be fine till you get your replacement rings.

Imola_Tip_Soul-Ja

thanks - gives me some piece of mind